--- /dev/null
+<?php
+
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+
+/**
+ * The PEAR DB driver for PHP's interbase extension
+ * for interacting with Interbase and Firebird databases
+ *
+ * While this class works with PHP 4, PHP's InterBase extension is
+ * unstable in PHP 4. Use PHP 5.
+ *
+ * PHP versions 4 and 5
+ *
+ * LICENSE: This source file is subject to version 3.0 of the PHP license
+ * that is available through the world-wide-web at the following URI:
+ * http://www.php.net/license/3_0.txt. If you did not receive a copy of
+ * the PHP License and are unable to obtain it through the web, please
+ * send a note to license@php.net so we can mail you a copy immediately.
+ *
+ * @category Database
+ * @package DB
+ * @author Sterling Hughes <sterling@php.net>
+ * @author Daniel Convissor <danielc@php.net>
+ * @copyright 1997-2007 The PHP Group
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0
+ * @version CVS: $Id: ibase.php,v 1.116 2007/09/21 13:40:41 aharvey Exp $
+ * @link http://pear.php.net/package/DB
+ */
+
+/**
+ * Obtain the DB_common class so it can be extended from
+ */
+require_once 'DB/common.php';
+
+/**
+ * The methods PEAR DB uses to interact with PHP's interbase extension
+ * for interacting with Interbase and Firebird databases
+ *
+ * These methods overload the ones declared in DB_common.
+ *
+ * While this class works with PHP 4, PHP's InterBase extension is
+ * unstable in PHP 4. Use PHP 5.
+ *
+ * NOTICE: limitQuery() only works for Firebird.
+ *
+ * @category Database
+ * @package DB
+ * @author Sterling Hughes <sterling@php.net>
+ * @author Daniel Convissor <danielc@php.net>
+ * @copyright 1997-2007 The PHP Group
+ * @license http://www.php.net/license/3_0.txt PHP License 3.0
+ * @version Release: 1.7.14RC1
+ * @link http://pear.php.net/package/DB
+ * @since Class became stable in Release 1.7.0
+ */
+class DB_ibase extends DB_common
+{
+ // {{{ properties
+
+ /**
+ * The DB driver type (mysql, oci8, odbc, etc.)
+ * @var string
+ */
+ var $phptype = 'ibase';
+
+ /**
+ * The database syntax variant to be used (db2, access, etc.), if any
+ * @var string
+ */
+ var $dbsyntax = 'ibase';
+
+ /**
+ * The capabilities of this DB implementation
+ *
+ * The 'new_link' element contains the PHP version that first provided
+ * new_link support for this DBMS. Contains false if it's unsupported.
+ *
+ * Meaning of the 'limit' element:
+ * + 'emulate' = emulate with fetch row by number
+ * + 'alter' = alter the query
+ * + false = skip rows
+ *
+ * NOTE: only firebird supports limit.
+ *
+ * @var array
+ */
+ var $features = array(
+ 'limit' => false,
+ 'new_link' => false,
+ 'numrows' => 'emulate',
+ 'pconnect' => true,
+ 'prepare' => true,
+ 'ssl' => false,
+ 'transactions' => true,
+ );
+
+ /**
+ * A mapping of native error codes to DB error codes
+ * @var array
+ */
+ var $errorcode_map = array(
+ -104 => DB_ERROR_SYNTAX,
+ -150 => DB_ERROR_ACCESS_VIOLATION,
+ -151 => DB_ERROR_ACCESS_VIOLATION,
+ -155 => DB_ERROR_NOSUCHTABLE,
+ -157 => DB_ERROR_NOSUCHFIELD,
+ -158 => DB_ERROR_VALUE_COUNT_ON_ROW,
+ -170 => DB_ERROR_MISMATCH,
+ -171 => DB_ERROR_MISMATCH,
+ -172 => DB_ERROR_INVALID,
+ // -204 => // Covers too many errors, need to use regex on msg
+ -205 => DB_ERROR_NOSUCHFIELD,
+ -206 => DB_ERROR_NOSUCHFIELD,
+ -208 => DB_ERROR_INVALID,
+ -219 => DB_ERROR_NOSUCHTABLE,
+ -297 => DB_ERROR_CONSTRAINT,
+ -303 => DB_ERROR_INVALID,
+ -413 => DB_ERROR_INVALID_NUMBER,
+ -530 => DB_ERROR_CONSTRAINT,
+ -551 => DB_ERROR_ACCESS_VIOLATION,
+ -552 => DB_ERROR_ACCESS_VIOLATION,
+ // -607 => // Covers too many errors, need to use regex on msg
+ -625 => DB_ERROR_CONSTRAINT_NOT_NULL,
+ -803 => DB_ERROR_CONSTRAINT,
+ -804 => DB_ERROR_VALUE_COUNT_ON_ROW,
+ // -902 => // Covers too many errors, need to use regex on msg
+ -904 => DB_ERROR_CONNECT_FAILED,
+ -922 => DB_ERROR_NOSUCHDB,
+ -923 => DB_ERROR_CONNECT_FAILED,
+ -924 => DB_ERROR_CONNECT_FAILED
+ );
+
+ /**
+ * The raw database connection created by PHP
+ * @var resource
+ */
+ var $connection;
+
+ /**
+ * The DSN information for connecting to a database
+ * @var array
+ */
+ var $dsn = array();
+
+
+ /**
+ * The number of rows affected by a data manipulation query
+ * @var integer
+ * @access private
+ */
+ var $affected = 0;
+
+ /**
+ * Should data manipulation queries be committed automatically?
+ * @var bool
+ * @access private
+ */
+ var $autocommit = true;
+
+ /**
+ * The prepared statement handle from the most recently executed statement
+ *
+ * {@internal Mainly here because the InterBase/Firebird API is only
+ * able to retrieve data from result sets if the statemnt handle is
+ * still in scope.}}
+ *
+ * @var resource
+ */
+ var $last_stmt;
+
+ /**
+ * Is the given prepared statement a data manipulation query?
+ * @var array
+ * @access private
+ */
+ var $manip_query = array();
+
+
+ // }}}
+ // {{{ constructor
+
+ /**
+ * This constructor calls <kbd>$this->DB_common()</kbd>
+ *
+ * @return void
+ */
+ function DB_ibase()
+ {
+ $this->DB_common();
+ }
+
+ // }}}
+ // {{{ connect()
+
+ /**
+ * Connect to the database server, log in and open the database
+ *
+ * Don't call this method directly. Use DB::connect() instead.
+ *
+ * PEAR DB's ibase driver supports the following extra DSN options:
+ * + buffers The number of database buffers to allocate for the
+ * server-side cache.
+ * + charset The default character set for a database.
+ * + dialect The default SQL dialect for any statement
+ * executed within a connection. Defaults to the
+ * highest one supported by client libraries.
+ * Functional only with InterBase 6 and up.
+ * + role Functional only with InterBase 5 and up.
+ *
+ * @param array $dsn the data source name
+ * @param bool $persistent should the connection be persistent?
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ */
+ function connect($dsn, $persistent = false)
+ {
+ if (!PEAR::loadExtension('interbase')) {
+ return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
+ }
+
+ $this->dsn = $dsn;
+ if ($dsn['dbsyntax']) {
+ $this->dbsyntax = $dsn['dbsyntax'];
+ }
+ if ($this->dbsyntax == 'firebird') {
+ $this->features['limit'] = 'alter';
+ }
+
+ $params = array(
+ $dsn['hostspec']
+ ? ($dsn['hostspec'] . ':' . $dsn['database'])
+ : $dsn['database'],
+ $dsn['username'] ? $dsn['username'] : null,
+ $dsn['password'] ? $dsn['password'] : null,
+ isset($dsn['charset']) ? $dsn['charset'] : null,
+ isset($dsn['buffers']) ? $dsn['buffers'] : null,
+ isset($dsn['dialect']) ? $dsn['dialect'] : null,
+ isset($dsn['role']) ? $dsn['role'] : null,
+ );
+
+ $connect_function = $persistent ? 'ibase_pconnect' : 'ibase_connect';
+
+ $this->connection = @call_user_func_array($connect_function, $params);
+ if (!$this->connection) {
+ return $this->ibaseRaiseError(DB_ERROR_CONNECT_FAILED);
+ }
+ return DB_OK;
+ }
+
+ // }}}
+ // {{{ disconnect()
+
+ /**
+ * Disconnects from the database server
+ *
+ * @return bool TRUE on success, FALSE on failure
+ */
+ function disconnect()
+ {
+ $ret = @ibase_close($this->connection);
+ $this->connection = null;
+ return $ret;
+ }
+
+ // }}}
+ // {{{ simpleQuery()
+
+ /**
+ * Sends a query to the database server
+ *
+ * @param string the SQL query string
+ *
+ * @return mixed + a PHP result resrouce for successful SELECT queries
+ * + the DB_OK constant for other successful queries
+ * + a DB_Error object on failure
+ */
+ function simpleQuery($query)
+ {
+ $ismanip = $this->_checkManip($query);
+ $this->last_query = $query;
+ $query = $this->modifyQuery($query);
+ $result = @ibase_query($this->connection, $query);
+
+ if (!$result) {
+ return $this->ibaseRaiseError();
+ }
+ if ($this->autocommit && $ismanip) {
+ @ibase_commit($this->connection);
+ }
+ if ($ismanip) {
+ $this->affected = $result;
+ return DB_OK;
+ } else {
+ $this->affected = 0;
+ return $result;
+ }
+ }
+
+ // }}}
+ // {{{ modifyLimitQuery()
+
+ /**
+ * Adds LIMIT clauses to a query string according to current DBMS standards
+ *
+ * Only works with Firebird.
+ *
+ * @param string $query the query to modify
+ * @param int $from the row to start to fetching (0 = the first row)
+ * @param int $count the numbers of rows to fetch
+ * @param mixed $params array, string or numeric data to be used in
+ * execution of the statement. Quantity of items
+ * passed must match quantity of placeholders in
+ * query: meaning 1 placeholder for non-array
+ * parameters or 1 placeholder per array element.
+ *
+ * @return string the query string with LIMIT clauses added
+ *
+ * @access protected
+ */
+ function modifyLimitQuery($query, $from, $count, $params = array())
+ {
+ if ($this->dsn['dbsyntax'] == 'firebird') {
+ $query = preg_replace('/^([\s(])*SELECT/i',
+ "SELECT FIRST $count SKIP $from", $query);
+ }
+ return $query;
+ }
+
+ // }}}
+ // {{{ nextResult()
+
+ /**
+ * Move the internal ibase result pointer to the next available result
+ *
+ * @param a valid fbsql result resource
+ *
+ * @access public
+ *
+ * @return true if a result is available otherwise return false
+ */
+ function nextResult($result)
+ {
+ return false;
+ }
+
+ // }}}
+ // {{{ fetchInto()
+
+ /**
+ * Places a row from the result set into the given array
+ *
+ * Formating of the array and the data therein are configurable.
+ * See DB_result::fetchInto() for more information.
+ *
+ * This method is not meant to be called directly. Use
+ * DB_result::fetchInto() instead. It can't be declared "protected"
+ * because DB_result is a separate object.
+ *
+ * @param resource $result the query result resource
+ * @param array $arr the referenced array to put the data in
+ * @param int $fetchmode how the resulting array should be indexed
+ * @param int $rownum the row number to fetch (0 = first row)
+ *
+ * @return mixed DB_OK on success, NULL when the end of a result set is
+ * reached or on failure
+ *
+ * @see DB_result::fetchInto()
+ */
+ function fetchInto($result, &$arr, $fetchmode, $rownum = null)
+ {
+ if ($rownum !== null) {
+ return $this->ibaseRaiseError(DB_ERROR_NOT_CAPABLE);
+ }
+ if ($fetchmode & DB_FETCHMODE_ASSOC) {
+ if (function_exists('ibase_fetch_assoc')) {
+ $arr = @ibase_fetch_assoc($result);
+ } else {
+ $arr = get_object_vars(ibase_fetch_object($result));
+ }
+ if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
+ $arr = array_change_key_case($arr, CASE_LOWER);
+ }
+ } else {
+ $arr = @ibase_fetch_row($result);
+ }
+ if (!$arr) {
+ return null;
+ }
+ if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
+ $this->_rtrimArrayValues($arr);
+ }
+ if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
+ $this->_convertNullArrayValuesToEmpty($arr);
+ }
+ return DB_OK;
+ }
+
+ // }}}
+ // {{{ freeResult()
+
+ /**
+ * Deletes the result set and frees the memory occupied by the result set
+ *
+ * This method is not meant to be called directly. Use
+ * DB_result::free() instead. It can't be declared "protected"
+ * because DB_result is a separate object.
+ *
+ * @param resource $result PHP's query result resource
+ *
+ * @return bool TRUE on success, FALSE if $result is invalid
+ *
+ * @see DB_result::free()
+ */
+ function freeResult($result)
+ {
+ return is_resource($result) ? ibase_free_result($result) : false;
+ }
+
+ // }}}
+ // {{{ freeQuery()
+
+ function freeQuery($query)
+ {
+ return is_resource($query) ? ibase_free_query($query) : false;
+ }
+
+ // }}}
+ // {{{ affectedRows()
+
+ /**
+ * Determines the number of rows affected by a data maniuplation query
+ *
+ * 0 is returned for queries that don't manipulate data.
+ *
+ * @return int the number of rows. A DB_Error object on failure.
+ */
+ function affectedRows()
+ {
+ if (is_integer($this->affected)) {
+ return $this->affected;
+ }
+ return $this->ibaseRaiseError(DB_ERROR_NOT_CAPABLE);
+ }
+
+ // }}}
+ // {{{ numCols()
+
+ /**
+ * Gets the number of columns in a result set
+ *
+ * This method is not meant to be called directly. Use
+ * DB_result::numCols() instead. It can't be declared "protected"
+ * because DB_result is a separate object.
+ *
+ * @param resource $result PHP's query result resource
+ *
+ * @return int the number of columns. A DB_Error object on failure.
+ *
+ * @see DB_result::numCols()
+ */
+ function numCols($result)
+ {
+ $cols = @ibase_num_fields($result);
+ if (!$cols) {
+ return $this->ibaseRaiseError();
+ }
+ return $cols;
+ }
+
+ // }}}
+ // {{{ prepare()
+
+ /**
+ * Prepares a query for multiple execution with execute().
+ *
+ * prepare() requires a generic query as string like <code>
+ * INSERT INTO numbers VALUES (?, ?, ?)
+ * </code>. The <kbd>?</kbd> characters are placeholders.
+ *
+ * Three types of placeholders can be used:
+ * + <kbd>?</kbd> a quoted scalar value, i.e. strings, integers
+ * + <kbd>!</kbd> value is inserted 'as is'
+ * + <kbd>&</kbd> requires a file name. The file's contents get
+ * inserted into the query (i.e. saving binary
+ * data in a db)
+ *
+ * Use backslashes to escape placeholder characters if you don't want
+ * them to be interpreted as placeholders. Example: <code>
+ * "UPDATE foo SET col=? WHERE col='over \& under'"
+ * </code>
+ *
+ * @param string $query query to be prepared
+ * @return mixed DB statement resource on success. DB_Error on failure.
+ */
+ function prepare($query)
+ {
+ $tokens = preg_split('/((?<!\\\)[&?!])/', $query, -1,
+ PREG_SPLIT_DELIM_CAPTURE);
+ $token = 0;
+ $types = array();
+ $newquery = '';
+
+ foreach ($tokens as $key => $val) {
+ switch ($val) {
+ case '?':
+ $types[$token++] = DB_PARAM_SCALAR;
+ break;
+ case '&':
+ $types[$token++] = DB_PARAM_OPAQUE;
+ break;
+ case '!':
+ $types[$token++] = DB_PARAM_MISC;
+ break;
+ default:
+ $tokens[$key] = preg_replace('/\\\([&?!])/', "\\1", $val);
+ $newquery .= $tokens[$key] . '?';
+ }
+ }
+
+ $newquery = substr($newquery, 0, -1);
+ $this->last_query = $query;
+ $newquery = $this->modifyQuery($newquery);
+ $stmt = @ibase_prepare($this->connection, $newquery);
+
+ if ($stmt === false) {
+ $stmt = $this->ibaseRaiseError();
+ } else {
+ $this->prepare_types[(int)$stmt] = $types;
+ $this->manip_query[(int)$stmt] = DB::isManip($query);
+ }
+
+ return $stmt;
+ }
+
+ // }}}
+ // {{{ execute()
+
+ /**
+ * Executes a DB statement prepared with prepare().
+ *
+ * @param resource $stmt a DB statement resource returned from prepare()
+ * @param mixed $data array, string or numeric data to be used in
+ * execution of the statement. Quantity of items
+ * passed must match quantity of placeholders in
+ * query: meaning 1 for non-array items or the
+ * quantity of elements in the array.
+ * @return object a new DB_Result or a DB_Error when fail
+ * @see DB_ibase::prepare()
+ * @access public
+ */
+ function &execute($stmt, $data = array())
+ {
+ $data = (array)$data;
+ $this->last_parameters = $data;
+
+ $types = $this->prepare_types[(int)$stmt];
+ if (count($types) != count($data)) {
+ $tmp = $this->raiseError(DB_ERROR_MISMATCH);
+ return $tmp;
+ }
+
+ $i = 0;
+ foreach ($data as $key => $value) {
+ if ($types[$i] == DB_PARAM_MISC) {
+ /*
+ * ibase doesn't seem to have the ability to pass a
+ * parameter along unchanged, so strip off quotes from start
+ * and end, plus turn two single quotes to one single quote,
+ * in order to avoid the quotes getting escaped by
+ * ibase and ending up in the database.
+ */
+ $data[$key] = preg_replace("/^'(.*)'$/", "\\1", $data[$key]);
+ $data[$key] = str_replace("''", "'", $data[$key]);
+ } elseif ($types[$i] == DB_PARAM_OPAQUE) {
+ $fp = @fopen($data[$key], 'rb');
+ if (!$fp) {
+ $tmp = $this->raiseError(DB_ERROR_ACCESS_VIOLATION);
+ return $tmp;
+ }
+ $data[$key] = fread($fp, filesize($data[$key]));
+ fclose($fp);
+ }
+ $i++;
+ }
+
+ array_unshift($data, $stmt);
+
+ $res = call_user_func_array('ibase_execute', $data);
+ if (!$res) {
+ $tmp = $this->ibaseRaiseError();
+ return $tmp;
+ }
+ /* XXX need this?
+ if ($this->autocommit && $this->manip_query[(int)$stmt]) {
+ @ibase_commit($this->connection);
+ }*/
+ $this->last_stmt = $stmt;
+ if ($this->manip_query[(int)$stmt] || $this->_next_query_manip) {
+ $this->_last_query_manip = true;
+ $this->_next_query_manip = false;
+ $tmp = DB_OK;
+ } else {
+ $this->_last_query_manip = false;
+ $tmp = new DB_result($this, $res);
+ }
+ return $tmp;
+ }
+
+ /**
+ * Frees the internal resources associated with a prepared query
+ *
+ * @param resource $stmt the prepared statement's PHP resource
+ * @param bool $free_resource should the PHP resource be freed too?
+ * Use false if you need to get data
+ * from the result set later.
+ *
+ * @return bool TRUE on success, FALSE if $result is invalid
+ *
+ * @see DB_ibase::prepare()
+ */
+ function freePrepared($stmt, $free_resource = true)
+ {
+ if (!is_resource($stmt)) {
+ return false;
+ }
+ if ($free_resource) {
+ @ibase_free_query($stmt);
+ }
+ unset($this->prepare_tokens[(int)$stmt]);
+ unset($this->prepare_types[(int)$stmt]);
+ unset($this->manip_query[(int)$stmt]);
+ return true;
+ }
+
+ // }}}
+ // {{{ autoCommit()
+
+ /**
+ * Enables or disables automatic commits
+ *
+ * @param bool $onoff true turns it on, false turns it off
+ *
+ * @return int DB_OK on success. A DB_Error object if the driver
+ * doesn't support auto-committing transactions.
+ */
+ function autoCommit($onoff = false)
+ {
+ $this->autocommit = $onoff ? 1 : 0;
+ return DB_OK;
+ }
+
+ // }}}
+ // {{{ commit()
+
+ /**
+ * Commits the current transaction
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ */
+ function commit()
+ {
+ return @ibase_commit($this->connection);
+ }
+
+ // }}}
+ // {{{ rollback()
+
+ /**
+ * Reverts the current transaction
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ */
+ function rollback()
+ {
+ return @ibase_rollback($this->connection);
+ }
+
+ // }}}
+ // {{{ transactionInit()
+
+ function transactionInit($trans_args = 0)
+ {
+ return $trans_args
+ ? @ibase_trans($trans_args, $this->connection)
+ : @ibase_trans();
+ }
+
+ // }}}
+ // {{{ nextId()
+
+ /**
+ * Returns the next free id in a sequence
+ *
+ * @param string $seq_name name of the sequence
+ * @param boolean $ondemand when true, the seqence is automatically
+ * created if it does not exist
+ *
+ * @return int the next id number in the sequence.
+ * A DB_Error object on failure.
+ *
+ * @see DB_common::nextID(), DB_common::getSequenceName(),
+ * DB_ibase::createSequence(), DB_ibase::dropSequence()
+ */
+ function nextId($seq_name, $ondemand = true)
+ {
+ $sqn = strtoupper($this->getSequenceName($seq_name));
+ $repeat = 0;
+ do {
+ $this->pushErrorHandling(PEAR_ERROR_RETURN);
+ $result = $this->query("SELECT GEN_ID(${sqn}, 1) "
+ . 'FROM RDB$GENERATORS '
+ . "WHERE RDB\$GENERATOR_NAME='${sqn}'");
+ $this->popErrorHandling();
+ if ($ondemand && DB::isError($result)) {
+ $repeat = 1;
+ $result = $this->createSequence($seq_name);
+ if (DB::isError($result)) {
+ return $result;
+ }
+ } else {
+ $repeat = 0;
+ }
+ } while ($repeat);
+ if (DB::isError($result)) {
+ return $this->raiseError($result);
+ }
+ $arr = $result->fetchRow(DB_FETCHMODE_ORDERED);
+ $result->free();
+ return $arr[0];
+ }
+
+ // }}}
+ // {{{ createSequence()
+
+ /**
+ * Creates a new sequence
+ *
+ * @param string $seq_name name of the new sequence
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ *
+ * @see DB_common::createSequence(), DB_common::getSequenceName(),
+ * DB_ibase::nextID(), DB_ibase::dropSequence()
+ */
+ function createSequence($seq_name)
+ {
+ $sqn = strtoupper($this->getSequenceName($seq_name));
+ $this->pushErrorHandling(PEAR_ERROR_RETURN);
+ $result = $this->query("CREATE GENERATOR ${sqn}");
+ $this->popErrorHandling();
+
+ return $result;
+ }
+
+ // }}}
+ // {{{ dropSequence()
+
+ /**
+ * Deletes a sequence
+ *
+ * @param string $seq_name name of the sequence to be deleted
+ *
+ * @return int DB_OK on success. A DB_Error object on failure.
+ *
+ * @see DB_common::dropSequence(), DB_common::getSequenceName(),
+ * DB_ibase::nextID(), DB_ibase::createSequence()
+ */
+ function dropSequence($seq_name)
+ {
+ return $this->query('DELETE FROM RDB$GENERATORS '
+ . "WHERE RDB\$GENERATOR_NAME='"
+ . strtoupper($this->getSequenceName($seq_name))
+ . "'");
+ }
+
+ // }}}
+ // {{{ _ibaseFieldFlags()
+
+ /**
+ * Get the column's flags
+ *
+ * Supports "primary_key", "unique_key", "not_null", "default",
+ * "computed" and "blob".
+ *
+ * @param string $field_name the name of the field
+ * @param string $table_name the name of the table
+ *
+ * @return string the flags
+ *
+ * @access private
+ */
+ function _ibaseFieldFlags($field_name, $table_name)
+ {
+ $sql = 'SELECT R.RDB$CONSTRAINT_TYPE CTYPE'
+ .' FROM RDB$INDEX_SEGMENTS I'
+ .' JOIN RDB$RELATION_CONSTRAINTS R ON I.RDB$INDEX_NAME=R.RDB$INDEX_NAME'
+ .' WHERE I.RDB$FIELD_NAME=\'' . $field_name . '\''
+ .' AND UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\'';
+
+ $result = @ibase_query($this->connection, $sql);
+ if (!$result) {
+ return $this->ibaseRaiseError();
+ }
+
+ $flags = '';
+ if ($obj = @ibase_fetch_object($result)) {
+ @ibase_free_result($result);
+ if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'PRIMARY KEY') {
+ $flags .= 'primary_key ';
+ }
+ if (isset($obj->CTYPE) && trim($obj->CTYPE) == 'UNIQUE') {
+ $flags .= 'unique_key ';
+ }
+ }
+
+ $sql = 'SELECT R.RDB$NULL_FLAG AS NFLAG,'
+ .' R.RDB$DEFAULT_SOURCE AS DSOURCE,'
+ .' F.RDB$FIELD_TYPE AS FTYPE,'
+ .' F.RDB$COMPUTED_SOURCE AS CSOURCE'
+ .' FROM RDB$RELATION_FIELDS R '
+ .' JOIN RDB$FIELDS F ON R.RDB$FIELD_SOURCE=F.RDB$FIELD_NAME'
+ .' WHERE UPPER(R.RDB$RELATION_NAME)=\'' . strtoupper($table_name) . '\''
+ .' AND R.RDB$FIELD_NAME=\'' . $field_name . '\'';
+
+ $result = @ibase_query($this->connection, $sql);
+ if (!$result) {
+ return $this->ibaseRaiseError();
+ }
+ if ($obj = @ibase_fetch_object($result)) {
+ @ibase_free_result($result);
+ if (isset($obj->NFLAG)) {
+ $flags .= 'not_null ';
+ }
+ if (isset($obj->DSOURCE)) {
+ $flags .= 'default ';
+ }
+ if (isset($obj->CSOURCE)) {
+ $flags .= 'computed ';
+ }
+ if (isset($obj->FTYPE) && $obj->FTYPE == 261) {
+ $flags .= 'blob ';
+ }
+ }
+
+ return trim($flags);
+ }
+
+ // }}}
+ // {{{ ibaseRaiseError()
+
+ /**
+ * Produces a DB_Error object regarding the current problem
+ *
+ * @param int $errno if the error is being manually raised pass a
+ * DB_ERROR* constant here. If this isn't passed
+ * the error information gathered from the DBMS.
+ *
+ * @return object the DB_Error object
+ *
+ * @see DB_common::raiseError(),
+ * DB_ibase::errorNative(), DB_ibase::errorCode()
+ */
+ function &ibaseRaiseError($errno = null)
+ {
+ if ($errno === null) {
+ $errno = $this->errorCode($this->errorNative());
+ }
+ $tmp = $this->raiseError($errno, null, null, null, @ibase_errmsg());
+ return $tmp;
+ }
+
+ // }}}
+ // {{{ errorNative()
+
+ /**
+ * Gets the DBMS' native error code produced by the last query
+ *
+ * @return int the DBMS' error code. NULL if there is no error code.
+ *
+ * @since Method available since Release 1.7.0
+ */
+ function errorNative()
+ {
+ if (function_exists('ibase_errcode')) {
+ return @ibase_errcode();
+ }
+ if (preg_match('/^Dynamic SQL Error SQL error code = ([0-9-]+)/i',
+ @ibase_errmsg(), $m)) {
+ return (int)$m[1];
+ }
+ return null;
+ }
+
+ // }}}
+ // {{{ errorCode()
+
+ /**
+ * Maps native error codes to DB's portable ones
+ *
+ * @param int $nativecode the error code returned by the DBMS
+ *
+ * @return int the portable DB error code. Return DB_ERROR if the
+ * current driver doesn't have a mapping for the
+ * $nativecode submitted.
+ *
+ * @since Method available since Release 1.7.0
+ */
+ function errorCode($nativecode = null)
+ {
+ if (isset($this->errorcode_map[$nativecode])) {
+ return $this->errorcode_map[$nativecode];
+ }
+
+ static $error_regexps;
+ if (!isset($error_regexps)) {
+ $error_regexps = array(
+ '/generator .* is not defined/'
+ => DB_ERROR_SYNTAX, // for compat. w ibase_errcode()
+ '/table.*(not exist|not found|unknown)/i'
+ => DB_ERROR_NOSUCHTABLE,
+ '/table .* already exists/i'
+ => DB_ERROR_ALREADY_EXISTS,
+ '/unsuccessful metadata update .* failed attempt to store duplicate value/i'
+ => DB_ERROR_ALREADY_EXISTS,
+ '/unsuccessful metadata update .* not found/i'
+ => DB_ERROR_NOT_FOUND,
+ '/validation error for column .* value "\*\*\* null/i'
+ => DB_ERROR_CONSTRAINT_NOT_NULL,
+ '/violation of [\w ]+ constraint/i'
+ => DB_ERROR_CONSTRAINT,
+ '/conversion error from string/i'
+ => DB_ERROR_INVALID_NUMBER,
+ '/no permission for/i'
+ => DB_ERROR_ACCESS_VIOLATION,
+ '/arithmetic exception, numeric overflow, or string truncation/i'
+ => DB_ERROR_INVALID,
+ '/feature is not supported/i'
+ => DB_ERROR_NOT_CAPABLE,
+ );
+ }
+
+ $errormsg = @ibase_errmsg();
+ foreach ($error_regexps as $regexp => $code) {
+ if (preg_match($regexp, $errormsg)) {
+ return $code;
+ }
+ }
+ return DB_ERROR;
+ }
+
+ // }}}
+ // {{{ tableInfo()
+
+ /**
+ * Returns information about a table or a result set
+ *
+ * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+ * is a table name.
+ *
+ * @param object|string $result DB_result object from a query or a
+ * string containing the name of a table.
+ * While this also accepts a query result
+ * resource identifier, this behavior is
+ * deprecated.
+ * @param int $mode a valid tableInfo mode
+ *
+ * @return array an associative array with the information requested.
+ * A DB_Error object on failure.
+ *
+ * @see DB_common::tableInfo()
+ */
+ function tableInfo($result, $mode = null)
+ {
+ if (is_string($result)) {
+ /*
+ * Probably received a table name.
+ * Create a result resource identifier.
+ */
+ $id = @ibase_query($this->connection,
+ "SELECT * FROM $result WHERE 1=0");
+ $got_string = true;
+ } elseif (isset($result->result)) {
+ /*
+ * Probably received a result object.
+ * Extract the result resource identifier.
+ */
+ $id = $result->result;
+ $got_string = false;
+ } else {
+ /*
+ * Probably received a result resource identifier.
+ * Copy it.
+ * Deprecated. Here for compatibility only.
+ */
+ $id = $result;
+ $got_string = false;
+ }
+
+ if (!is_resource($id)) {
+ return $this->ibaseRaiseError(DB_ERROR_NEED_MORE_DATA);
+ }
+
+ if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
+ $case_func = 'strtolower';
+ } else {
+ $case_func = 'strval';
+ }
+
+ $count = @ibase_num_fields($id);
+ $res = array();
+
+ if ($mode) {
+ $res['num_fields'] = $count;
+ }
+
+ for ($i = 0; $i < $count; $i++) {
+ $info = @ibase_field_info($id, $i);
+ $res[$i] = array(
+ 'table' => $got_string ? $case_func($result) : '',
+ 'name' => $case_func($info['name']),
+ 'type' => $info['type'],
+ 'len' => $info['length'],
+ 'flags' => ($got_string)
+ ? $this->_ibaseFieldFlags($info['name'], $result)
+ : '',
+ );
+ if ($mode & DB_TABLEINFO_ORDER) {
+ $res['order'][$res[$i]['name']] = $i;
+ }
+ if ($mode & DB_TABLEINFO_ORDERTABLE) {
+ $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+ }
+ }
+
+ // free the result only if we were called on a table
+ if ($got_string) {
+ @ibase_free_result($id);
+ }
+ return $res;
+ }
+
+ // }}}
+ // {{{ getSpecialQuery()
+
+ /**
+ * Obtains the query string needed for listing a given type of objects
+ *
+ * @param string $type the kind of objects you want to retrieve
+ *
+ * @return string the SQL query string or null if the driver doesn't
+ * support the object type requested
+ *
+ * @access protected
+ * @see DB_common::getListOf()
+ */
+ function getSpecialQuery($type)
+ {
+ switch ($type) {
+ case 'tables':
+ return 'SELECT DISTINCT R.RDB$RELATION_NAME FROM '
+ . 'RDB$RELATION_FIELDS R WHERE R.RDB$SYSTEM_FLAG=0';
+ case 'views':
+ return 'SELECT DISTINCT RDB$VIEW_NAME from RDB$VIEW_RELATIONS';
+ case 'users':
+ return 'SELECT DISTINCT RDB$USER FROM RDB$USER_PRIVILEGES';
+ default:
+ return null;
+ }
+ }
+
+ // }}}
+
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */
+
+?>
projects / quix0rs-gnu-social.git / blobdiff